CVE-2021-3196

An issue was discovered in Hitachi ID Bravura Security Fabric 11.0.0 through 11.1.3, 12.0.0 through 12.0.2, and 12.1.0. When using federated identity management (authenticating via SAML through a third-party identity provider), an attacker can inject additional data into a signed SAML response being transmitted to the service provider (ID Bravura Security Fabric). The application successfully validates the signed values but uses the unsigned malicious values. An attacker with lower-privilege access to the application can inject the username of a high-privilege user to impersonate that user.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.5 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.hitachi.com/hirt/security/index.html	Vendor Advisory
https://www.hitachi-id.com/cve-2021-3196-attackers-can-impersonate-another-user	Vendor Advisory
https://www.hitachi.com/hirt/hitachi-sec/2021/601.html	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:hitachi:id_bravura_security_fabric::::::::
	cpe:2.3:a:hitachi:id_bravura_security_fabric::::::::
	cpe:2.3:a:hitachi:id_bravura_security_fabric:12.1.0:::::::*

Information

Published : 2021-06-09 08:15

Updated : 2021-06-24 09:34

NVD link : CVE-2021-3196

Mitre link : CVE-2021-3196

JSON object : View

CWE

CWE-347

Improper Verification of Cryptographic Signature

Products Affected

hitachi

id_bravura_security_fabric

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8.8 /10